<template>
	<view class="uni-calendar" @mouseleave="leaveCale">
		<view v-if="!insert&&show" class="uni-calendar__mask" :class="{'uni-calendar--mask-show':aniMaskShow}"
			@click="clean"></view>
		<view v-if="insert || show" class="uni-calendar__content"
			:class="{'uni-calendar--fixed':!insert,'uni-calendar--ani-show':aniMaskShow, 'uni-calendar__content-mobile': aniMaskShow}">
			<view class="uni-calendar__header" :class="{'uni-calendar__header-mobile' :!insert}">
				<view v-if="left" class="uni-calendar__header-btn-box" @click.stop="pre">
					<view class="uni-calendar__header-btn uni-calendar--left"></view>
				</view>
				<picker mode="date" :value="date" fields="month" @change="bindDateChange">
					<text
						class="uni-calendar__header-text">{{ (nowDate.year||'') + ' 年 ' + ( nowDate.month||'') +' 月'}}</text>
				</picker>
				<view v-if="right" class="uni-calendar__header-btn-box" @click.stop="next">
					<view class="uni-calendar__header-btn uni-calendar--right"></view>
				</view>
				<view v-if="!insert" class="dialog-close" @click="clean">
					<view class="dialog-close-plus" data-id="close"></view>
					<view class="dialog-close-plus dialog-close-rotate" data-id="close"></view>
				</view>

				<!-- <text class="uni-calendar__backtoday" @click="backtoday">回到今天</text> -->
			</view>
			<view class="uni-calendar__box">
				<view v-if="showMonth" class="uni-calendar__box-bg">
					<text class="uni-calendar__box-bg-text">{{nowDate.month}}</text>
				</view>
				<view class="uni-calendar__weeks" style="padding-bottom: 7px;">
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{SUNText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{monText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{TUEText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{WEDText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{THUText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{FRIText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{SATText}}</text>
					</view>
				</view>
				<view class="uni-calendar__weeks" v-for="(item,weekIndex) in weeks" :key="weekIndex">
					<view class="uni-calendar__weeks-item" v-for="(weeks,weeksIndex) in item" :key="weeksIndex">
						<calendar-item class="uni-calendar-item--hook" :weeks="weeks" :calendar="calendar"
							:selected="selected" :lunar="lunar" :checkHover="range" @change="choiceDate"
							@handleMouse="handleMouse">
						</calendar-item>
					</view>
				</view>
			</view>
			<view v-if="!insert && !range && typeHasTime" class="uni-date-changed uni-calendar--fixed-top"
				style="padding: 0 80px;">
				<view class="uni-date-changed--time-date">{{tempSingleDate ? tempSingleDate : selectDateText}}</view>
				<time-picker type="time" :start="reactStartTime" :end="reactEndTime" v-model="time"
					:disabled="!tempSingleDate" :border="false" :hide-second="hideSecond" class="time-picker-style">
				</time-picker>
			</view>

			<view v-if="!insert && range && typeHasTime" class="uni-date-changed uni-calendar--fixed-top">
				<view class="uni-date-changed--time-start">
					<view class="uni-date-changed--time-date">{{tempRange.before ? tempRange.before : startDateText}}
					</view>
					<time-picker type="time" :start="reactStartTime" v-model="timeRange.startTime" :border="false"
						:hide-second="hideSecond" :disabled="!tempRange.before" class="time-picker-style">
					</time-picker>
				</view>
				<uni-icons type="arrowthinright" color="#999" style="line-height: 50px;"></uni-icons>
				<view class="uni-date-changed--time-end">
					<view class="uni-date-changed--time-date">{{tempRange.after ? tempRange.after : endDateText}}</view>
					<time-picker type="time" :end="reactEndTime" v-model="timeRange.endTime" :border="false"
						:hide-second="hideSecond" :disabled="!tempRange.after" class="time-picker-style">
					</time-picker>
				</view>
			</view>
			<view v-if="!insert" class="uni-date-changed uni-date-btn--ok">
				<!-- <view class="uni-calendar__header-btn-box">
					<text class="uni-calendar__button-text uni-calendar--fixed-width">{{okText}}</text>
				</view> -->
				<view class="uni-datetime-picker--btn" @click="confirm">确认</view>
			</view>
		</view>
	</view>
</template>

<script>
import Calendar from './util.js'
import calendarItem from './calendar-item.vue'
import timePicker from './time-picker.vue'
import {
  initVueI18n
} from '@dcloudio/uni-i18n'
import messages from './i18n/index.js'
const {
  t
} = initVueI18n(messages)
/**
	 * Calendar 日历
	 * @description 日历组件可以查看日期，选择任意范围内的日期，打点操作。常用场景如：酒店日期预订、火车机票选择购买日期、上下班打卡等
	 * @tutorial https://ext.dcloud.net.cn/plugin?id=56
	 * @property {String} date 自定义当前时间，默认为今天
	 * @property {Boolean} lunar 显示农历
	 * @property {String} startDate 日期选择范围-开始日期
	 * @property {String} endDate 日期选择范围-结束日期
	 * @property {Boolean} range 范围选择
	 * @property {Boolean} insert = [true|false] 插入模式,默认为false
	 * 	@value true 弹窗模式
	 * 	@value false 插入模式
	 * @property {Boolean} clearDate = [true|false] 弹窗模式是否清空上次选择内容
	 * @property {Array} selected 打点，期待格式[{date: '2019-06-27', info: '签到', data: { custom: '自定义信息', name: '自定义消息头',xxx:xxx... }}]
	 * @property {Boolean} showMonth 是否选择月份为背景
	 * @event {Function} change 日期改变，`insert :ture` 时生效
	 * @event {Function} confirm 确认选择`insert :false` 时生效
	 * @event {Function} monthSwitch 切换月份时触发
	 * @example <uni-calendar :insert="true":lunar="true" :start-date="'2019-3-2'":end-date="'2019-5-20'"@change="change" />
	 */
export default {
  components: {
    calendarItem,
    timePicker
  },
  props: {
    date: {
      type: String,
      default: ''
    },
    defTime: {
      type: [String, Object],
      default: ''
    },
    selectableTimes: {
      type: [Object],
      default () {
        return {}
      }
    },
    selected: {
      type: Array,
      default () {
        return []
      }
    },
    lunar: {
      type: Boolean,
      default: false
    },
    startDate: {
      type: String,
      default: ''
    },
    endDate: {
      type: String,
      default: ''
    },
    range: {
      type: Boolean,
      default: false
    },
    typeHasTime: {
      type: Boolean,
      default: false
    },
    insert: {
      type: Boolean,
      default: true
    },
    showMonth: {
      type: Boolean,
      default: true
    },
    clearDate: {
      type: Boolean,
      default: true
    },
    left: {
      type: Boolean,
      default: true
    },
    right: {
      type: Boolean,
      default: true
    },
    checkHover: {
      type: Boolean,
      default: true
    },
    hideSecond: {
      type: [Boolean],
      default: false
    },
    pleStatus: {
      type: Object,
      default () {
        return {
          before: '',
          after: '',
          data: [],
          fulldate: ''
        }
      }
    }
  },
  data () {
    return {
      show: false,
      weeks: [],
      calendar: {},
      nowDate: '',
      aniMaskShow: false,
      firstEnter: true,
      time: '',
      timeRange: {
        startTime: '',
        endTime: ''
      },
      tempSingleDate: '',
      tempRange: {
        before: '',
        after: ''
      }
    }
  },
  watch: {
    date: {
      immediate: true,
      handler (newVal, oldVal) {
        if (!this.range) {
          this.tempSingleDate = newVal
          setTimeout(() => {
            this.init(newVal)
          }, 100)
        }
      }
    },
    defTime: {
      immediate: true,
      handler (newVal, oldVal) {
        if (!this.range) {
          this.time = newVal
        } else {
          // console.log('-----', newVal);
          this.timeRange.startTime = newVal.start
          this.timeRange.endTime = newVal.end
        }
      }
    },
    startDate (val) {
      this.cale.resetSatrtDate(val)
      this.cale.setDate(this.nowDate.fullDate)
      this.weeks = this.cale.weeks
    },
    endDate (val) {
      this.cale.resetEndDate(val)
      this.cale.setDate(this.nowDate.fullDate)
      this.weeks = this.cale.weeks
    },
    selected (newVal) {
      this.cale.setSelectInfo(this.nowDate.fullDate, newVal)
      this.weeks = this.cale.weeks
    },
    pleStatus: {
      immediate: true,
      handler (newVal, oldVal) {
        const {
          before,
          after,
          fulldate,
          which
        } = newVal
        this.tempRange.before = before
        this.tempRange.after = after
        setTimeout(() => {
          if (fulldate) {
            this.cale.setHoverMultiple(fulldate)
            if (before && after) {
              this.cale.lastHover = true
              if (this.rangeWithinMonth(after, before)) return
              this.setDate(before)
            } else {
              this.cale.setMultiple(fulldate)
              this.setDate(this.nowDate.fullDate)
              this.calendar.fullDate = ''
              this.cale.lastHover = false
            }
          } else {
            this.cale.setDefaultMultiple(before, after)
            if (which === 'left') {
              this.setDate(before)
              this.weeks = this.cale.weeks
            } else {
              this.setDate(after)
              this.weeks = this.cale.weeks
            }
            this.cale.lastHover = true
          }
        }, 16)
      }
    }
  },
  computed: {
    reactStartTime () {
      const activeDate = this.range ? this.tempRange.before : this.calendar.fullDate
      const res = activeDate === this.startDate ? this.selectableTimes.start : ''
      return res
    },
    reactEndTime () {
      const activeDate = this.range ? this.tempRange.after : this.calendar.fullDate
      const res = activeDate === this.endDate ? this.selectableTimes.end : ''
      return res
    },
    /**
			 * for i18n
			 */
    selectDateText () {
      return t('uni-datetime-picker.selectDate')
    },
    startDateText () {
      return this.startPlaceholder || t('uni-datetime-picker.startDate')
    },
    endDateText () {
      return this.endPlaceholder || t('uni-datetime-picker.endDate')
    },
    okText () {
      return t('uni-datetime-picker.ok')
    },
    monText () {
      return t('uni-calender.MON')
    },
    TUEText () {
      return t('uni-calender.TUE')
    },
    WEDText () {
      return t('uni-calender.WED')
    },
    THUText () {
      return t('uni-calender.THU')
    },
    FRIText () {
      return t('uni-calender.FRI')
    },
    SATText () {
      return t('uni-calender.SAT')
    },
    SUNText () {
      return t('uni-calender.SUN')
    }
  },
  created () {
    // 获取日历方法实例
    this.cale = new Calendar({
      // date: new Date(),
      selected: this.selected,
      startDate: this.startDate,
      endDate: this.endDate,
      range: this.range
      // multipleStatus: this.pleStatus
    })
    // 选中某一天
    // this.cale.setDate(this.date)
    this.init(this.date)
    // this.setDay
  },
  methods: {
    leaveCale () {
      this.firstEnter = true
    },
    handleMouse (weeks) {
      if (weeks.disable) return
      if (this.cale.lastHover) return
      const {
        before,
        after
      } = this.cale.multipleStatus
      if (!before) return
      this.calendar = weeks
      // 设置范围选
      this.cale.setHoverMultiple(this.calendar.fullDate)
      this.weeks = this.cale.weeks
      // hover时，进入一个日历，更新另一个
      if (this.firstEnter) {
        this.$emit('firstEnterCale', this.cale.multipleStatus)
        this.firstEnter = false
      }
    },
    rangeWithinMonth (A, B) {
      const [yearA, monthA] = A.split('-')
      const [yearB, monthB] = B.split('-')
      return yearA === yearB && monthA === monthB
    },

    // 取消穿透
    clean () {
      this.close()
    },

    clearCalender () {
      if (this.range) {
        this.timeRange.startTime = ''
        this.timeRange.endTime = ''
        this.tempRange.before = ''
        this.tempRange.after = ''
        this.cale.multipleStatus.before = ''
        this.cale.multipleStatus.after = ''
        this.cale.multipleStatus.data = []
        this.cale.lastHover = false
      } else {
        this.time = ''
        this.tempSingleDate = ''
      }
      this.calendar.fullDate = ''
      this.setDate()
    },

    bindDateChange (e) {
      const value = e.detail.value + '-1'
      this.init(value)
    },
    /**
			 * 初始化日期显示
			 * @param {Object} date
			 */
    init (date) {
      this.cale.setDate(date)
      this.weeks = this.cale.weeks
      this.nowDate = this.calendar = this.cale.getInfo(date)
    },
    // choiceDate(weeks) {
    // 	if (weeks.disable) return
    // 	this.calendar = weeks
    // 	// 设置多选
    // 	this.cale.setMultiple(this.calendar.fullDate, true)
    // 	this.weeks = this.cale.weeks
    // 	this.tempSingleDate = this.calendar.fullDate
    // 	this.tempRange.before = this.cale.multipleStatus.before
    // 	this.tempRange.after = this.cale.multipleStatus.after
    // 	this.change()
    // },
    /**
			 * 打开日历弹窗
			 */
    open () {
      // 弹窗模式并且清理数据
      if (this.clearDate && !this.insert) {
        this.cale.cleanMultipleStatus()
        // this.cale.setDate(this.date)
        this.init(this.date)
      }
      this.show = true
      this.$nextTick(() => {
        setTimeout(() => {
          this.aniMaskShow = true
        }, 50)
      })
    },
    /**
			 * 关闭日历弹窗
			 */
    close () {
      this.aniMaskShow = false
      this.$nextTick(() => {
        setTimeout(() => {
          this.show = false
          this.$emit('close')
        }, 300)
      })
    },
    /**
			 * 确认按钮
			 */
    confirm () {
      this.setEmit('confirm')
      this.close()
    },
    /**
			 * 变化触发
			 */
    change () {
      if (!this.insert) return
      this.setEmit('change')
    },
    /**
			 * 选择月份触发
			 */
    monthSwitch () {
      const {
        year,
        month
      } = this.nowDate
      this.$emit('monthSwitch', {
        year,
        month: Number(month)
      })
    },
    /**
			 * 派发事件
			 * @param {Object} name
			 */
    setEmit (name) {
      const {
        year,
        month,
        date,
        fullDate,
        lunar,
        extraInfo
      } = this.calendar
      this.$emit(name, {
        range: this.cale.multipleStatus,
        year,
        month,
        date,
        time: this.time,
        timeRange: this.timeRange,
        fulldate: fullDate,
        lunar,
        extraInfo: extraInfo || {}
      })
    },
    /**
			 * 选择天触发
			 * @param {Object} weeks
			 */
    choiceDate (weeks) {
      if (weeks.disable) return
      this.calendar = weeks
      this.calendar.userChecked = true
      // 设置多选
      this.cale.setMultiple(this.calendar.fullDate, true)
      this.weeks = this.cale.weeks
      this.tempSingleDate = this.calendar.fullDate
      this.tempRange.before = this.cale.multipleStatus.before
      this.tempRange.after = this.cale.multipleStatus.after
      this.change()
    },
    /**
			 * 回到今天
			 */
    backtoday () {
      const date = this.cale.getDate(new Date()).fullDate
      // this.cale.setDate(date)
      this.init(date)
      this.change()
    },
    /**
			 * 比较时间大小
			 */
    dateCompare (startDate, endDate) {
      // 计算截止时间
      startDate = new Date(startDate.replace('-', '/').replace('-', '/'))
      // 计算详细项的截止时间
      endDate = new Date(endDate.replace('-', '/').replace('-', '/'))
      if (startDate <= endDate) {
        return true
      } else {
        return false
      }
    },
    /**
			 * 上个月
			 */
    pre () {
      const preDate = this.cale.getDate(this.nowDate.fullDate, -1, 'month').fullDate
      this.setDate(preDate)
      this.monthSwitch()
    },
    /**
			 * 下个月
			 */
    next () {
      const nextDate = this.cale.getDate(this.nowDate.fullDate, +1, 'month').fullDate
      this.setDate(nextDate)
      this.monthSwitch()
    },
    /**
			 * 设置日期
			 * @param {Object} date
			 */
    setDate (date) {
      this.cale.setDate(date)
      this.weeks = this.cale.weeks
      this.nowDate = this.cale.getInfo(date)
    }
  }
}
</script>

<style lang="scss" >
	.uni-calendar {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: column;
	}

	.uni-calendar__mask {
		position: fixed;
		bottom: 0;
		top: 0;
		left: 0;
		right: 0;
		background-color: rgba(0, 0, 0, 0.4);
		transition-property: opacity;
		transition-duration: 0.3s;
		opacity: 0;
		/* #ifndef APP-NVUE */
		z-index: 99;
		/* #endif */
	}

	.uni-calendar--mask-show {
		opacity: 1
	}

	.uni-calendar--fixed {
		position: fixed;
		bottom: calc(var(--window-bottom));
		left: 0;
		right: 0;
		transition-property: transform;
		transition-duration: 0.3s;
		transform: translateY(460px);
		/* #ifndef APP-NVUE */
		z-index: 99;
		/* #endif */
	}

	.uni-calendar--ani-show {
		transform: translateY(0);
	}

	.uni-calendar__content {
		background-color: #fff;
	}

	.uni-calendar__content-mobile {
		border-top-left-radius: 10px;
		border-top-right-radius: 10px;
		box-shadow: 0px 0px 5px 3px rgba(0, 0, 0, 0.1);
	}

	.uni-calendar__header {
		position: relative;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		justify-content: center;
		align-items: center;
		height: 50px;
	}

	.uni-calendar__header-mobile {
		padding: 10px;
		padding-bottom: 0;
	}

	.uni-calendar--fixed-top {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		justify-content: space-between;
		border-top-color: rgba(0, 0, 0, 0.4);
		border-top-style: solid;
		border-top-width: 1px;
	}

	.uni-calendar--fixed-width {
		width: 50px;
	}

	.uni-calendar__backtoday {
		position: absolute;
		right: 0;
		top: 25rpx;
		padding: 0 5px;
		padding-left: 10px;
		height: 25px;
		line-height: 25px;
		font-size: 12px;
		border-top-left-radius: 25px;
		border-bottom-left-radius: 25px;
		color: #fff;
		background-color: #f1f1f1;
	}

	.uni-calendar__header-text {
		text-align: center;
		width: 100px;
		font-size: 15px;
		color: #666;
	}

	.uni-calendar__button-text {
		text-align: center;
		width: 100px;
		font-size: 14px;
		color: #007aff;
		/* #ifndef APP-NVUE */
		letter-spacing: 3px;
		/* #endif */
	}

	.uni-calendar__header-btn-box {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		align-items: center;
		justify-content: center;
		width: 50px;
		height: 50px;
	}

	.uni-calendar__header-btn {
		width: 9px;
		height: 9px;
		border-left-color: #808080;
		border-left-style: solid;
		border-left-width: 1px;
		border-top-color: #555555;
		border-top-style: solid;
		border-top-width: 1px;
	}

	.uni-calendar--left {
		transform: rotate(-45deg);
	}

	.uni-calendar--right {
		transform: rotate(135deg);
	}

	.uni-calendar__weeks {
		position: relative;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
	}

	.uni-calendar__weeks-item {
		flex: 1;
	}

	.uni-calendar__weeks-day {
		flex: 1;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: column;
		justify-content: center;
		align-items: center;
		height: 40px;
		border-bottom-color: #F5F5F5;
		border-bottom-style: solid;
		border-bottom-width: 1px;
	}

	.uni-calendar__weeks-day-text {
		font-size: 12px;
		color: #B2B2B2;
	}

	.uni-calendar__box {
		position: relative;
		// padding: 0 10px;
		padding-bottom: 7px;
	}

	.uni-calendar__box-bg {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		justify-content: center;
		align-items: center;
		position: absolute;
		top: 0;
		left: 0;
		right: 0;
		bottom: 0;
	}

	.uni-calendar__box-bg-text {
		font-size: 200px;
		font-weight: bold;
		color: #999;
		opacity: 0.1;
		text-align: center;
		/* #ifndef APP-NVUE */
		line-height: 1;
		/* #endif */
	}

	.uni-date-changed {
		padding: 0 10px;
		// line-height: 50px;
		text-align: center;
		color: #333;
		border-top-color: #DCDCDC;
		;
		border-top-style: solid;
		border-top-width: 1px;
		flex: 1;
	}

	.uni-date-btn--ok {
		padding: 20px 15px;
	}

	.uni-date-changed--time-start {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		align-items: center;
	}

	.uni-date-changed--time-end {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		align-items: center;
	}

	.uni-date-changed--time-date {
		color: #999;
		line-height: 50px;
		margin-right: 5px;
		// opacity: 0.6;
	}

	.time-picker-style {
		// width: 62px;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		justify-content: center;
		align-items: center
	}

	.mr-10 {
		margin-right: 10px;
	}

	.dialog-close {
		position: absolute;
		top: 0;
		right: 0;
		bottom: 0;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		align-items: center;
		padding: 0 25px;
		margin-top: 10px;
	}

	.dialog-close-plus {
		width: 16px;
		height: 2px;
		background-color: #737987;
		border-radius: 2px;
		transform: rotate(45deg);
	}

	.dialog-close-rotate {
		position: absolute;
		transform: rotate(-45deg);
	}

	.uni-datetime-picker--btn {
		border-radius: 100px;
		height: 40px;
		line-height: 40px;
		background-color: #007aff;
		color: #fff;
		font-size: 16px;
		letter-spacing: 5px;
	}

	/* #ifndef APP-NVUE */
	.uni-datetime-picker--btn:active {
		opacity: 0.7;
	}
	/* #endif */
</style>
